29-21-00
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A
757 FAULT ISOLATION/MAINT MANUAL
MAIN EQUIPMENT CENTER SEE L
ACCESS DOOR, 119BL, FOR THE MAIN EQUIPMENT CENTER
FWD
E1 RACK
AIRSPEED SWITCH
FOR THE RAM AIR
TURBINE (RAT)
SEE M
MAIN EQUIPMENT CENTER
SWITCH SUPPORT (EXAMPLE)
BRACKET
(REF) L
E1 RACK
STANCHION
(REF)
RAT ARM Q
AIRSPEED SWITCH,
S10334
SWITCH
CLAMP (REF)
AIRSPEED SWITCH FOR THE RAM AIR TURBINE (RAT)
M
Ram Air Turbine (RAT) System - Component Location Figure 102 (Sheet 6)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
29-21-00
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A
757 MAINTENANCE MANUAL
RAM AIR TURBINE (RAT) SYSTEM - MAINTENANCE PRACTICES
____________________________________________________
1. General
_______
A. This procedure has these tasks:
(1)
Extend the Ram Air Turbine (RAT)
(2)
Retract the RAT
(3)
Get access to the retraced RAT if it will not extend
B. If you do a test on the pitot static system, make sure these circuit breakers are open:
NOTE: Do not close the circuit breakers until the pitot static test is
____
done.
(1)
On the main power distribution panel, P6:
(a)
6F1, RAT MAN or RAT MAN PWR
(b)
6F2, RAT MAN CONT
(2)
On the overhead panel, P11:
(a)
11D26, HYDRAULIC RAT CONT or HYDRAULIC RAT AUTO CONT
(b)
11D27, HYDRAULIC RAT AUTO or HYDRAULIC RAT AUTO PWR
TASK 29-21-00-862-001
2. Extend the RAT
______________
A. Equipment
(1)
RAT Circuit Breaker Lock Set - B27065-9 or Equivalent
(2)
Ram Air Turbine Blade Protective Cover - 732021
Sundstrand Aviation Corp.
4747 Harrision Ave.
Rockford, IL
(3)
Ram Air Turbine Hub Protective Cover - 734734
Sundstrand Aviation Corp.
4747 Harrision Ave.
Rockford, IL
B. References
(1) AMM 29-11-00/201, Main (Left, Right and Center) Hydraulic Systems
C. Access
(1) Location Zones 143/144 MLG Wheel Well 198 Wing to Body - Aft Lower Half (Right) 211/212 Control Cabin 710 Nose Landing Gear and Doors 730/740 Main Landing Gear and Doors
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757
MAINTENANCE MANUAL
AFT BULKHEAD OF THE SEE B RIGHT WHELL WELL ASEE RAM AIR TURBINE ( RAT)
DOOR LINK
RAT COMPARTMENT OUTBOARD WALL OF THE DEPLOYMENT ACTUATOR
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